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Amortizable Intangible Assets | 12 Months Ended
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Dec. 31, 2012
Amortizable Intangible Assets | NOTE 4 Amortizable Intangible Assets Amortizable intangible assets at December 31 consisted of the following:
|  | 2012 |  |  | 2011 |
(in thousands) |  | Gross Carrying Value |  |  | Accumulated Amortization |  |  | Net Carrying Value |  |  | Weighted Average Life (years) |  |  | Gross Carrying Value |  |  | Accumulated Amortization |  |  | Net Carrying Value |  |  | Weighted Average Life (years) |
Purchased customer accounts |  | $ | 1,005,031 |  |  | $ | (439,623 | ) |  | $ | 565,408 |  |  |  | 14.9 |  |  | $ | 876,552 |  |  | $ | (381,615 | ) |  | $ | 494,937 |  |  |  | 14.9 |
Non-compete agreements |  |  | 25,320 |  |  |  | (24,190 | ) |  |  | 1,130 |  |  |  | 7.2 |  |  |  | 25,291 |  |  |  | (24,046 | ) |  |  | 1,245 |  |  |  | 7.2 |
Total |  | $ | 1,030,351 |  |  | $ | (463,813 | ) |  | $ | 566,538 |  |  |  |  |  |  | $ | 901,843 |  |  | $ | (405,661 | ) |  | $ | 496,182 |  |  |  |  |
Amortization expense recorded for amortizable intangible assets for the years ended December 31, 2012, 2011 and 2010 was $63,573,000, $54,755,000 and $51,442,000, respectively. Amortization expense for amortizable intangible assets for the years ending December 31, 2013, 2014, 2015, 2016 and 2017 is estimated to be $64,082,000, $63,020,000, $61,730,000, $57,149,000, and $54,437,000, respectively.

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- Definition The entire disclosure for all or part of the information related to intangible assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 44, 45, 46 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=7658586&loc=d3e16323-109275 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=7658586&loc=d3e16373-109275 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=7658586&loc=d3e16265-109275 + Details
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